////////////////////////////////////////////////////////////////////////////////
// Name: FloraPropagatorUno-01 //
// Platform: Arduino UNO Rev 3 //
// Created by: HARB, Januar 2017, GPL copyrights //
// http://robotigs.com/robotigs/includes/bots_header.php?idbot=17 //
// Connect your Arduino to your PC and open the serial monitor. //
////////////////////////////////////////////////////////////////////////////////
//Set system targets -----------------------------------------------------------
float propatemp = 18.0; //Temperature in the propagator +-1dC
float propahours = 14.0; //Number of hours around noon to switch on LED lighting
float propahumid = 00.0; //Percentage to signal water spraying needed
//Propagating Strawberry Hybrid: propatemp=24, propahours=16, propahumid=90
//Propagating Strawberry Hybrid Phase2: Temp=18, Hours=14, propahumid=00
// SET PRECOMPILER OPTIONS *****************************************************
//Define the needed header files for the precompiler, no charge if not used ----
#include <stdio.h> //http://quadpoint.org/projects/arduino-ds1302
#include <DS1302.h> //Copyright (c) 2009, Matt Sparks
#include <DHT.h> //DHT22/11 Temperature and humidity sensors
// Define precompiler variables ------------------------------------------------
#define DHTPIN 7 //What digital pin is DHTXX connected to
#define DHTPIN1 12 //What digital pin is DHTXX connected to
#define DHTPIN2 A0 //What digital pin is DHTXX connected to
//#define DHTTYPE DHT11 //DHT 11 Uncomment whatever type you're using
//#define DHTTYPE DHT21 //DHT 21 (AM2301)
#define DHTTYPE DHT22 //DHT 22 (AM2302), AM2321
DHT dht(DHTPIN, DHTTYPE); //Initialize DHT sensor1
DHT dht1(DHTPIN1, DHTTYPE); //Initialize DHT sensor2
DHT dht2(DHTPIN2, DHTTYPE); //Initialize DHT sensor3
//Declare variables ------------------------------------------------------------
bool ledBinVal = LOW; //Choose HIGH=on or LOW=off for on-board LED
bool lightSwitch = HIGH; //Choose HIGH=off or LOW=on for LED strip, Relay1
bool airSwitch = HIGH; //Choose HIGH=off or LOW=on for Air heater, Relay2
bool soilSwitch = HIGH; //Set HIGH=off or LOW=on for Propagator heater, Relay3
bool waterSwitch = HIGH; //Choose HIGH=off or LOW=on for Waterpump, Relay4
int val; //Define numeric variables val
word light; //Read LDR value (0-1023)
word moist;
word water;
float airtemp0;
float humidity0;
float hic0;
float dew0;
float airtemp1;
float humidity1;
float hic1;
float dew1;
float airtemp2;
float humidity2;
float hic2;
float dew2;
char buf[50];
int starthours = 12 - (propahours / 2); //Used to switch clock switch ON
int finishhours = 12 + (propahours / 2); //Used to switch clock switch OFF
int currenthour; //As in timetxt to compare with starthours and finishhours
String timetxt; //Contains a stamp format without time-zone as defined by PgSql
const int kSclkPin = 2; //DS1302 Serial Clock, Yellow CLK
const int kIoPin = 3; //DS1302 Input/Output, Blue DAT
const int kCePin = 4; //DS1302 Chip Enable, Green RST
DS1302 rtc(kCePin, kIoPin, kSclkPin); //Create a DS1302 object
//END OF PRECOMPILER OPTIONS ---------------------------------------------------
void setup() { //Setup runs once ***********************************************
Serial.begin(9600); //Nothing more needed for the Serial Monitor to function
pinMode(LED_BUILTIN, OUTPUT); //Arduino boards contain an onboard LED
digitalWrite(LED_BUILTIN, LOW); //Arduino onboard LED switch OFF
pinMode(2, OUTPUT); //Funny colours LED
pinMode(5, OUTPUT); //Relay1 = LEDstrip lighting
digitalWrite(5, HIGH); //Relay1 LEDstrip HIGH=off
pinMode(6, OUTPUT); //Relay2 = 1000W Air Heater
digitalWrite(6, HIGH); //Relay2 = 1000W Air Heater HIGH=off
pinMode(8, OUTPUT); //Beepmachine
pinMode(9, OUTPUT); //Tri color LED red, lighting
pinMode(10, OUTPUT); //Tri color LED green, humidity
pinMode(11, OUTPUT); //Tri color LED blue, heating
pinMode (A1, INPUT); //Define LDR pin as input
pinMode (A2, OUTPUT); //Define Relay3 propagator as output
digitalWrite(A2, HIGH); //Relay3 = 35W propagator heater LOW=on
pinMode (A3, OUTPUT); //Define Relay4 waterpump as output
digitalWrite(A3, HIGH); //Relay4 = waterpump HIGH=off
pinMode (A4, INPUT); //Define moisture pin as input
pinMode (A5, INPUT); //Define water pin as input
analogReference(DEFAULT); //Option may be different for other boards
dht.begin(); //Start DHT sensor
dht1.begin(); //Start DHT sensor
dht2.begin(); //Start DHT sensor
rtc.writeProtect(false); //DS1302
rtc.halt(false); //DS1302
//Time t(2017, 01, 19, 21, 13, 20, Time::kThursday); //UNCOMMENT TO SET TIME
//rtc.time(t); //Set the time and date on the chip UNCOMMENT TO SET THE TIME
}//--(end setup )---------------------------------------------------------------
void loop() { //KEEP ON RUNNING THIS LOOP FOREVER ******************************
// 1) FIRST STEP IS TO READ ALL SENSORS ----------------------------------------
light = analogRead(A1); //Read LDR value (0-1023)
moist = analogRead(A4); //Moisture
water = analogRead(A5); //Waterlevel
humidity0 = dht.readHumidity(); //Reading sensor takes 250 milliseconds
airtemp0 = dht.readTemperature(); //Read temperature as Celsius
humidity1 = dht1.readHumidity(); //Reading sensor takes 250 milliseconds
airtemp1 = dht1.readTemperature(); //Read temperature in °C
humidity2 = dht2.readHumidity(); //Reading sensor takes 250 milliseconds
airtemp2 = dht2.readTemperature(); //Read temperature in °C
hic2 = dht2.computeHeatIndex(airtemp2, humidity2, false); //Heat index in °C
readTime(); //DS1302 Reading the time and format results into variables
hic0 = dht.computeHeatIndex(airtemp0, humidity0, false); //Heat index in °C
hic1 = dht.computeHeatIndex(airtemp1, humidity1, false); //Heat index in °C
hic2 = dht.computeHeatIndex(airtemp2, humidity2, false); //Heat index in °C
dew0 = dewPoint(airtemp0, humidity0); //Calculate dewpoint in °C
dew1 = dewPoint(airtemp1, humidity1); //Calculate dewpoint in °C
dew2 = dewPoint(airtemp2, humidity2); //Calculate dewpoint in °C
// 2) SECOND STEP IS TO CALCULATE THE DESIRED SETTING OF THE SWITCHES ----------
calculate_lightswitch(); //Calculate lightSwitch ON or OFF according to clock
calculate_airheater(); //Calculate the airSwitch on or off
calculate_soilheater(); //Calculate the soilSwitch ON or OFF
calculate_waterpump(); //Calculate the waterSwitch on or off
// 3) THIRD STEP IS TO SET THE SWITCHES AS DESIRED -----------------------------
switch_light(); //Switch the LED lighting on or off according to lightSwitch
switch_airheater(); //Switch the airheater on or off according to airSwitch
switch_soil(); //Switch the propagator heater according to soilSwitch
switch_waterpump(); //Switch the waterpump on or off according to waterSwitch
// 4) LAST STEP IS TO COMMUNICATE TO THE SERIAL PORT AND FINISH LOOP -----------
//COMMUNICATE TO THE SERIAL PORT ON THE PC -----------------------------------
Serial.print(light); //Tese values are caputered by a PHP program
Serial.print(" "); //This space is to easily break up the string
Serial.print(moist); //Shows soil moisture (0-1023) 0=dry
Serial.print(" "); //This space is to easily break up the string
Serial.print(water); //Shows water level (0-1023) 0=empty
Serial.print(" "); //This space is to easily break up the string
Serial.print(airtemp0, 1);
Serial.print(" "); //This space is to easily break up the string
Serial.print(humidity0, 0);
Serial.print(" "); //This space is to easily break up the string
Serial.print(hic0, 1);
Serial.print(" "); //This space is to easily break up the string
Serial.print(airtemp1, 1);
Serial.print(" "); //This space is to easily break up the string
Serial.print(humidity1, 0);
Serial.print(" "); //This space is to easily break up the string
Serial.print(hic1, 1);
Serial.print(" "); //This space is to easily break up the string
Serial.print(airtemp2, 1);
Serial.print(" "); //This space is to easily break up the string
Serial.print(humidity2, 0);
Serial.print(" "); //This space is to easily break up the string
Serial.print(hic2, 1);
Serial.print(" "); //This space is to easily break up the string
Serial.print(timetxt);
Serial.print(" "); //This space is to easily break up the string
Serial.print(airSwitch);
Serial.print(" "); //This space is to easily break up the string
Serial.print(lightSwitch);
Serial.print(" "); //This space is to easily break up the string
Serial.print(waterSwitch);
Serial.print(" "); //This space is to easily break up the string
Serial.print(soilSwitch);
Serial.print(" "); //This space is to easily break up the string
Serial.print(dew0, 1);
Serial.print(" "); //This space is to easily break up the string
Serial.print(dew1, 1);
Serial.print(" "); //This space is to easily break up the string
Serial.print(dew2, 1);
Serial.println(" X"); //Terminator
toggle_ledBin(); //Toggles the default on-board LED on or off
delay(5000); //DHT22 No more than 0.5 Hz sampling rate (once every 2 seconds)
} //End of void loop() //KEEP ON RUNNING THIS LOOP FOREVER
//345678911234567892123456789312345678941234567895123456789612345678971234567898
void toggle_ledBin(void) { //Toggles the default on-board LED on or off ********
ledBinVal = !ledBinVal; //Toggle value
digitalWrite(LED_BUILTIN, ledBinVal); //Set Arduino boards onboard LED
} //Exit toggle_ledBin ---------------------------------------------------------
void calculate_lightswitch() { //Calculate lightSwitch according to clock ******
if (currenthour < starthours){
lightSwitch = HIGH; //Switch the grow LEDs off, HIGH=off LOW=on
}
if (currenthour > finishhours){
lightSwitch = HIGH; //Switch the grow LEDs off, HIGH=off LOW=on
}
if (currenthour > (starthours-1) && currenthour <(finishhours)){
lightSwitch = LOW; //Switch the grow LEDs on, HIGH=off LOW=on
}
} //Exit calculate_lightswitch -------------------------------------------------
void calculate_airheater() { //Calculate the airSwitch on or off ***************
if (airtemp0 < propatemp-2){ //Measurement shows it is way to cold
if (airtemp0 > 1){ //Meaning temperature sensor is functioning all right
airSwitch = LOW; //Switch the heater on HIGH=off LOW=on
}else{ //Airtemp <=1 is assumed to be an measurement error
airSwitch = HIGH; //Switch the heater off HIGH=off LOW=on
} //If sensor seems faulty then the heater is switched off
} //End of if (airtemp0 < propatemp)
if (airtemp0 > propatemp){ //The heather has reached propatemp +1
airSwitch = HIGH; //Switch the heater off HIGH=off LOW=on
} //End of if (airtemp0 > propatemp)
} //Exit calculate_airheater ---------------------------------------------------
void calculate_soilheater() { //Calculate the soilSwitch ON or OFF *************
if (airtemp0 < propatemp){ //Measurement shows it is to cold
if (airtemp0 > 1){ //Meaning temperature sensor is functioning all right
soilSwitch = LOW; //Switch the heater on HIGH=off LOW=on
}else{ //Airtemp <=1 is assumed to be an measurement error
soilSwitch = HIGH; //Switch the heater off HIGH=off LOW=on
} //If sensor seems faulty then the heater is switched off
} //End of if (airtemp0 < propatemp)
if (airtemp0 > (propatemp)){ //The heather has reached propatemp +1
soilSwitch = HIGH; //Switch the heater off HIGH=off LOW=on
} //End of if (airtemp0 > propatemp)
} //Exit calculate_soilheater --------------------------------------------------
void calculate_waterpump() { //Calculate the waterSwitch on or off *************
if (humidity0 < propahumid) { //When the air becomes to dry
waterSwitch = LOW; //Switch the pump ON, HIGH=off LOW=on
}else{ //Otherwise the soil seems moist enough
waterSwitch = HIGH; //Switch the pump OFF, HIGH=off LOW=on
} //End of (humidity1 < propahumid)
} //Exit calculate_waterpump ---------------------------------------------------
void switch_waterpump() { //Switch the waterpump according to waterSwitch ******
if (waterSwitch == LOW){ //SWITCH THE WATER PUMP ON
digitalWrite(A3, LOW); //Switch the pump ON, Relay4 HIGH=off LOW=on
}else{ //SWITCH THE WATER PUMP OFF
digitalWrite(A3, HIGH); //Switch the pump OFF, Relay4 HIGH=off LOW=on
} //End of waterSwitch == LOW, set the waterpump
} //Exit switch_waterpump ------------------------------------------------------
void switch_airheater() { //Switch the airheater according to airSwitch ********
if (airSwitch == LOW){ //SWITCH THE HEATER ON
digitalWrite(5, LOW); //Switch the heater on, Relay2 HIGH=off LOW=on
}else{ //SWITCH THE HEATER OFF
digitalWrite(5, HIGH); //So switch the heater off, Relay1 HIGH=off
} //End of airSwitch == LOW, set the airheater
} //Exit switch_airheater ------------------------------------------------------
void switch_light() { //Switch the LED lighting according to lightSwitch *******
if (lightSwitch == LOW){ //SWITCH THE LED STRIP GROW LIGHT
digitalWrite(6, LOW); //So turn the lighting on, Relay1 HIGH=off, LOW=on
}else{
digitalWrite(6, HIGH); //So switch the lighting off, Relay2 HIGH=off
} //End of TIME SWITCH, calculate and set the lightSwitch -------------------
} //Exit switch_light ----------------------------------------------------------
void switch_soil() { //Switch the propagator heater according to soilSwitch ****
if (soilSwitch == LOW){ //SWITCH THE PROPAGATOR HEATER
digitalWrite(A2, LOW);//So turn the propagator ON, Relay3 HIGH=off, LOW=on
}else{
digitalWrite(A2, HIGH); //So switch the propagator OFF, Relay3 HIGH=off
} //End of SOIL SWITCH, Switch the propagator heater ------------------------
} //Exit switch_soil -----------------------------------------------------------
void readTime(){ //DS1302 Reading the time and format results into variables ***
Time t = rtc.time(); //Get the current time and date from the chip
snprintf(buf, sizeof(buf), "%04d-%02d-%02d %02d:%02d:%02d", //Format as
t.yr, t.mon, t.date, //Desired by the Pgsql timestamp data type
t.hr, t.min, t.sec);
currenthour = t.hr; //Used to calculate the grow light time switch
timetxt = buf ; //Used to export to the database
} //End of DS1302 Reading the time and format results into variables -----------
double dewPoint(double celsius, double humidity) { //Calculate dewpoint ********
//John Main added dewpoint code from: http://playground.arduino.cc/main/DHT11Lib
//Also added DegC output for Heat Index.
//dewPoint function NOAA
//ref1: http://wahiduddin.net/calc/density_algorithms.htm
//ref2: http://www.colorado.edu/geography/weather_station/Geog_site/about.htm
// (1) Saturation Vapor Pressure = ESGG(T)
double RATIO = 373.15 / (273.15 + celsius);
double RHS = -7.90298 * (RATIO - 1);
RHS += 5.02808 * log10(RATIO);
RHS += -1.3816e-7 * (pow(10, (11.344 * (1 - 1 / RATIO ))) - 1) ;
RHS += 8.1328e-3 * (pow(10, (-3.49149 * (RATIO - 1))) - 1) ;
RHS += log10(1013.246);
// factor -3 is to adjust units - Vapor Pressure SVP * humidity
double VP = pow(10, RHS - 3) * humidity;
// (2) DEWPOINT = F(Vapor Pressure)
double T = log(VP / 0.61078); //Temp var
return (241.88 * T) / (17.558 - T);
} //End of double dewPoint(double celsius, double humidity) --------------------
////////////////////////////////////////////////////////////////////////////////
// PIN ALLOCATIONS TABLE ARDUINO UNO //
// Board -Atmel- PIN - IDE - Function - Connection ALT //
// //
// CONNECTIONS RAILS TOP LEFT: DIGITAL PWM<~> ******************************* //
// SCL - 28 - PC5 -19/A5- ADC5/SCL/PCINT13 - White cable to GY-521 TWI //
// SDA - 27 - PC4 -18/A4- ADC4/SDA/PCINT12 - Yellow cable to GY-521 TWI //
// AREF - 21 - REF - - AREF - //
// GND - 22 - GND - - GND - //
// 13 - 19 - PB5 - 13 - SCK/PCINT5 - LED_BUILTIN Arduino SPI //
// 12 - 18 - PB4 - 12 - MISO/PCINT4 - DHT22 Sensor Checkbox1 SPI //
// ~11 - 17 - PB3 - 11 - MOSI/OC2A/PCINT3 - LED 3-color blue PWM //
// ~10 - 16 - PB2 - 10 - SS/OC1B/PCINT2 - LED 3-color green PWM //
// ~9 - 15 - PB1 - 9 - OC1A/PCINT1 - LED 3-color red PWM //
// 8 - 14 - PB0 - 8 - PCINT0/CLK0/ICP1 - Active buzzer DIO //
// //
// CONNECTIONS RAILS TOP RIGHT: DIGITAL PWM<~> ****************************** //
// 7 - 13 - PD7 - 7 - PCINT23/AIN1 - DHT22 Sensor0 SWITCHBOX DIO //
// ~6 - 12 - PD6 - 6 - PCINT22/OCA0/AIN0 - Relay2 Airheater (Yellow)PWM //
// ~5 - 11 - PD5 - 5 - PCINT21/OC0B/T1 - Relay1 Light (Green) PWM //
// ~4 - 6 - PD4 - 4 - PCINT20/XCK/T0 - DS1320 RST Green PWM //
// ~3 - 5 - PD3 - 3 - PCINT19/OC2B/INT1 - DS1320 DAT Blue INT //
// ~2 - 4 - PD2 - 2 - PCINT18/INT0 - DS1320 CLK Yellow INT //
// TX->1 - 3 - PD1 - 1 - PCINT17/TXD - Serial monitor TXD //
// RX<-0 - 2 - PD0 - 0 - PCINT16/RCD - Serial Monitor RCD //
// //
// CONNECTIONS RAILS BOTTOM LEFT: POWER ************************************* //
// 5V - 7 - VCC - - VCC - Output to breadboard VCC //
// RES - 1 - RES - - PCINT14/RESET - RES //
// 3.3V - - - - - //
// 5V - - - - - //
// GND - - - - - //
// GND - - - - - //
// Vin - - - - - //
// //
// CONNECTIONS RAILS BOTTOM RIGHT: ANALOG IN ******************************** //
// A0 - 23 - PC0 -A0/14- ADC0/PCINT8 - DHT22 Sensor Checkbox2 ADC //
// A1 - 24 - PC1 -A1/15- ADC1/PCINT9 - LDR ADC //
// A2 - 25 - PC2 -A2/16- ADC2/PCINT10 - Relay3 Soilheater (Red) ADC //
// A3 - 26 - PC3 -A3/17- ADC3/PCINT12 - Relay4 Waterpump (Blank) ADC //
// A4 - 27 - PC4 -A4/18- ADC4/SDA/PCINT12 - Moisture TWI //
// A5 - 28 - PC5 -A5/19- ADC5/SCL/PCINT13 - Water level TWI //
////////////////////////////////////////////////////////////////////////////////
// EEPROM MEMORY MAP: //
// Start End Number Description //
// 0000 0000 1 Never use this memory location to be AVR compatible //
////////////////////////////////////////////////////////////////////////////////
//345678911234567892123456789312345678941234567895123456789612345678971234567898